<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<input type="button" value="点击" onclick="ssn()">
<input type="button" value="确定" onclick="son()">
<script>
    function ssn(){
        window.close();
    }
    function son(){
        window.open("4.1.1.html");
    }
</script>
</body>
</html>